How something was built and what it cost to build it that way.
View All TagsAn MCP server has been built into the Dart SDK since July 2025, and only recently have people started actually using it. MCP is the protocol that lets a coding agent call a server for information or actions. For Dart that means the agent is no longer limited to the terminal — it can reach into your running app.
We connected it to Claude Code on a demo app and checked what it gives in practice.
Summer produced exactly one stable Flutter release. 3.45 and 3.46 never reached
stable at all, and 3.47 arrived on 12 August carrying 1358 commits on top of
3.44. The headline is not a feature. It is a repackaging: material and
cupertino moved out of the SDK into separate packages.
That sounds alarming and mostly is not — today. Here is what we found migrating a real project from 3.44.0 to 3.47.2, and the one widely repeated claim about this release that does not survive contact with the code.
Letting people sign in with either a phone number or an email looks like a one-line change: widen the lookup, accept both. We shipped it last week in a live project, and the one-line change turned out to be a data-model change with a bill attached.
Here is what it actually costs, in the order the costs show up.